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Re: [Qemu-devel] [PATCH v3 2/8] hw/mips_gictimer: provide API for retrie


From: Philippe Mathieu-Daudé
Subject: Re: [Qemu-devel] [PATCH v3 2/8] hw/mips_gictimer: provide API for retrieving frequency
Date: Wed, 8 Feb 2017 18:31:05 -0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.6.0

On 02/08/2017 01:32 PM, Yongbok Kim wrote:
From: Paul Burton <address@hidden>

Provide a new function mips_gictimer_get_freq() which returns the
frequency at which a GIC timer will count. This will be useful for
boards which perform setup based upon this frequency.

Signed-off-by: Paul Burton <address@hidden>
Reviewed-by: Leon Alrae <address@hidden>
Signed-off-by: Yongbok Kim <address@hidden>
---
 hw/timer/mips_gictimer.c         | 5 +++++
 include/hw/timer/mips_gictimer.h | 1 +
 2 files changed, 6 insertions(+)

diff --git a/hw/timer/mips_gictimer.c b/hw/timer/mips_gictimer.c
index 3698889..f5c5806 100644
--- a/hw/timer/mips_gictimer.c
+++ b/hw/timer/mips_gictimer.c
@@ -14,6 +14,11 @@

 #define TIMER_PERIOD 10 /* 10 ns period for 100 Mhz frequency */

+uint32_t mips_gictimer_get_freq(MIPSGICTimerState *gic)
+{
+    return NANOSECONDS_PER_SECOND / TIMER_PERIOD;
+}
+
 static void gic_vptimer_update(MIPSGICTimerState *gictimer,
                                    uint32_t vp_index, uint64_t now)
 {
diff --git a/include/hw/timer/mips_gictimer.h b/include/hw/timer/mips_gictimer.h
index c8bc5d2..c7ca6c8 100644
--- a/include/hw/timer/mips_gictimer.h
+++ b/include/hw/timer/mips_gictimer.h
@@ -31,6 +31,7 @@ struct MIPSGICTimerState {
     MIPSGICTimerCB *cb;
 };

+uint32_t mips_gictimer_get_freq(MIPSGICTimerState *gic);
 uint32_t mips_gictimer_get_sh_count(MIPSGICTimerState *gic);
 void mips_gictimer_store_sh_count(MIPSGICTimerState *gic, uint64_t count);
 uint32_t mips_gictimer_get_vp_compare(MIPSGICTimerState *gictimer,


Reviewed-by: Philippe Mathieu-Daudé <address@hidden>



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